feat: add support for Graph Tools in AIAgent model and related services

internal/pkg/dto/request/ai_request.go

@@ -56,6 +56,7 @@ type CreateAIAgentRequest struct {
 	KnowledgeIDs        []int64                         `json:"knowledgeIds"`
 	SkillIDs            []int64                         `json:"skillIds"`
 	DirectTools         []AIAgentMCPToolRequest         `json:"directTools"`
+	GraphTools          []string                        `json:"graphTools"`
 	Remark              string                          `json:"remark"`
 }
 

internal/pkg/dto/response/ai_response.go

@@ -89,6 +89,7 @@ type AIAgentResponse struct {
 	SkillIDs            []int64                         `json:"skillIds"`
 	Skills              []AIAgentSkillResponse          `json:"skills"`
 	DirectTools         []AIAgentMCPToolResponse        `json:"directTools"`
+	GraphTools          []string                        `json:"graphTools"`
 	SortNo              int                             `json:"sortNo"`
 	Remark              string                          `json:"remark"`
 	CreatedAt           string                          `json:"createdAt"`

internal/pkg/toolx/builtin_tools.go

@@ -281,6 +281,12 @@ func IsAgentDirectToolCode(toolCode string) bool {
 	return ok && spec.DirectAccess
 }
 
+func IsAgentDirectGraphToolCode(toolCode string) bool {
+	toolCode = NormalizeToolCodeAlias(strings.TrimSpace(toolCode))
+	spec, ok := GetRegisteredToolSpec(toolCode)
+	return ok && spec.DirectAccess && spec.SourceType == enums.ToolSourceTypeGraph
+}
+
 func NormalizeToolCodeAlias(toolCode string) string {
 	toolCode = strings.TrimSpace(toolCode)
 	if canonical, ok := toolAliasToCanonical[toolCode]; ok {